Slicing machine



July 10, 1934, w. J, CAMPBELL SLICING MACHINE Filed Ju1y `30, 1952 4 Sheets-Sheet 1 @WMA www5

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July 10, 1934. w. J. CAMPBELL SLICING MACHINE Filed July 30. 1932 4 Sheets-Sheet 2 @Ven or Q. ,M M Q?,

w. J. CAMPBELL SLICING MACHINE Filed July 50, 1932 f2 July 1o; 1934.

4 Sheets-Sheet 3 July 10, 1934. w. J. CAMPBELL SLICING MACHINE Filed July 30, 1932 4 Sheets-Shea?l 4 y Patented duly 1Q, 1934 SLICING MAGHNE `Williarn J. Campliell, indianapolis, Ind., assigner to American Sncing Machine Company, Chicago, lll., a corporation of New York Appiieation July 30, 1932, Serial No. 626,474

1@ Claims. (Cl. 14d- 102) Wy invention relates to an improvement in at C5, the rear face of the knife being notched slicing machines and has for one purpose the or recessed as at C", to receive and overlap the provision of an improved pusher plate. Another outer edge of the member C1. Any suitable purpose is the provision of improved means for means may he employed to hold the knife and locking such a pusher plate in inoperative posipulley in place for example the axial screw C9 tion to permit the manual feeding of the niateand the rad' .lly spaced screws C10. C12 indicates rial being sliced toward the cutting plane. Anan end wall of the upper housing projection C other purpose is the provision of improved means and C13 the rear wall. As shown in Figure l, for releasahly positioning a guard plate forwardly the rear wall is apertured as at C14 to permit of the knife and adjacent the cutting plane. the passage therethrough of the motor shaft B1 (35 Another object is the provision of means for and of a portion of the motor housing B. As preventing the guard plate from seing cent in shown in Figures 1 and 2 the belt B3 passes or pushed against the knife. Another object is about the knife pulley C4, the knife being thus the provision of improved means for centering rotated in response to rotation of the motor.

, 15 or positioning sharpening means for the knife. D indicates a shield positioned between the '1e Other objects will appear from time to time in knife transmission and the knife itself. It may the course of the speciiication and claims. seat for example against the inward projection l illustrate my invention more or less dia- D1 on the end walls C12 C13 and it extends well grammatically in the accompanying drawings, within the periphery of the cutting edge of the whereinknife, preferably approaching the hub of the 75 Figure l is a plan view with parts broken knife as Shown in Figure 1. The inner edge may away; seat against the ledge D2, the member being Figure 2 is a front elevation; apertured as at D3 to permit the passage of the Figure 3 is a vertical section on the line 3-3 hub of the knife therethrough. lt may be held of Figure 2; in place as by the screws D4. It serves as a shield 3.5

Figure 4 is a p rtial top plan view; between the knife and the knife transmission, Figure 5 is a section on the line 5-5 of Figure whereby no grease, drippings or scraps can pene- 3, illustrating parts in different position; trate to the transmission. Since it entirely sur- Figure 6 is an enlarged section on the line rounds the knife, within the periphery of the 30 6-6 of Figure 2; knife, it will be clear that the centrifugal effect 85 Figure l is an enlarged section on the line of the rotation of the knife will he to prevent the '7--7 of Eigure 2; and penetration of any such material sufficiently in- Figure 8 is a front el^"ation of a-guard plate. wardly toward the axis of rotation of the knife Like parts are indicated 'oy like symbols to pass into the aperture D3. throughout the speoincation and drawings. The forward face of the upstanding housing 9o Referring to the drawings, A generally indimember C is closed as by the guard plate gencates any suitable base having anti-vibrational orally indicated as E. As shown in Figure l the pads or supports A1 which rest upon any suitable axis of the knife is slightly tilted to permit the supporting surface A2, for example a counter or arcuate edge El of the guard plate to penetrate .1g the like. a forward hollow E2 of the knife and to lie sub- B indicates a motor mounted on the hase A stantially flush with the very slightly bowed cutand having a motor shaft B1 and a pulley B2 ting plane defined by the cutting edge of the knife. abort which passes a belt B3. The guard plate carries a scraper E3 secured C indicates a housing extension projecting upthereon in any suitable manner, for example by wardly from the base A. ssc-ciated with it is the adjusting screw E4. rThe lower edge of the 10o a flared sleeve C1 terminating rearwardly in a guard plate is notched as at E5 to seat upon supgeneraliy cylindrical p ion C2. "Qositiened withporting pins E5 which may he screwthreaded for in the portion C2, the details of which form adjustment into the base or frame. Each such no part of the present invention and are not pin may include a normally nXed lenticular guard 5 indicated in de "l herein, is any suitable hearing plate engaging member El and an opposed mov- 105 means for a knife shaft C3 on which is mounted able lenticular member ES thrust thereagainst as a pulley-1 C4 and the knife C5. As will be seen by the coil spring E9. As the opposed faces of in Figure l, the pulley is positioned within and the members El E2 are ared apart, it will be unis housed by the member C1, but the cutting edge derstood that the guard plate may be readily of the knife C5 extends outwardly beyond it as positioned thereupon, the opposed members hav- 110 cti ing, in response to action of the spring E9, a snap action permitting ready insertion of the guard plate, but gripping the plate when it is placed in position. The upper edge of the guard plate E is provided with ears E19 E11 at right angles to the face of the plate proper, such ears overlying top horizontal portions E12 of the frame member C. They are slotted as at E13 in such fashion that when the plate is swung into the full line position of Figure 4 they pass about the screwthreaded securing pins G1 which hold down the top cover plate G. 'Ihe ears E19 E11 are located at different levels and the guard plate is irregularly formed, to permit movement cf a` knife sharpening assembly which will later be described..

The plate E is outwardly oiset at top and bottom, as at E14 E15, in order to permit the arcuate edge E1 to penetrate the forward hollow of the knife C5. The lower edge of the guard plate E is preferably outwardly bent as at E12 to facilitate its insertion between the engaging members El E8 when the upper edge of the guard plate is outwardly tilted for convenient insertion. This will be clear from Figure 3 in which the guard plate is shown, in dotted line position, tilted somewhat outwardly, and is shown in full line in closed position. The handle E17 may be employed for easy handling or" the guard plate. In order to permit ready insertion and withdrawal of the ears vE19 E11, the top portion E12 of the frame member C and portions of the edge of the cover plate G may be bevelled as shown at E19.

In order further lto permit ready handling of the plate E I provide a spring clip F as shown in Figure 7 which includes a body portion F1 secured to the top of the frame as by the locking screw E21, and a rolled edge F2. The spring is so formed as normally to iiex up into the dotted line position in which it is shown in Figure 6 to permit the plate readily to penetrate beneath it. One function of the spring F is to prevent the plate from working out at the top during use as the overhanging roll F2 when it is in the full line position of Figure 6, serves as a positive locking means for holding the upper edge of the plate E in position.

The ycover plateG-overlies the spring F and may be drawn down into full line position as by rotation of the screw or thumb nut G1. When so Vdrawn down it compresses the spring 'F into the full line position of Figure 6, thus completing the locking effect. It is provided with lugs G2 which actually engage the spring F, extending somewhat downwardly below the normal under surface of the cover plate G and forming eective and sure clamping means for holding the spring F dovm in full locking position.

To provide an inner abutment for the upper edge vof the guard plate E I employ a plate E19, which is slotted as at E22 to receive an adjusting and locking screw E21. As `the slot E22 is inclined, `the forward edge of the member E19 may be adjusted inwardly or outwardly in relation to the guard plate E and it serves as a limit to limit the inward movement of the guard plate and to permit its accurate adjustment -in relation to the knife. Note that the locking screw E21 serves to secure both the spring F and the adjusting plate E19 upon the top portion E12 of the frame member C. The spring F is slotted as at F3 to permit passage therethrough of the securing pin G1.

H indicates a unitary sharpening lever with an -outer handle H1. Mounted along the lever and rotatable in relation thereto is the stone H2 and the metallic burr removing disc H3. Yielding means are employed, for example the spring H4, for keeping the sharpening lever in intermediate position with the stone and the metal disc both out of Contact with the knife edge. The operator may move the lever in either direction, against the pull of the spring H4. The cover plate G is upwardly oilset as at H5, to give space for the sharpening assembly, and is apertured as at H9 to permit the handle H1 to extend outwardly therethrough. The lever H is pivoted concentrically with one of the securing members G1. Such member may be surrounded by a bearing sleeve H7. In order to permit adjusting of the pull of the spring H4 I provide an adjustment plate or clip H2 slotted as at H9 which may be gripped by two securing screws H19. The purpose oi' this adjustment is to permit the inner end of the spring to be so adjusted as to hold the lever H normally in such position that neither of the sharpening members H2 or H3 engages the knife edge unless the handle H1 is positively moved in one direction or another, In order to limit the movement of the guard plate E toward the knife and to prevent any thrust against it from causing it to impinge against the knife I provide an anti-fricticnal fiber stud or spacing member indicated as I. It may be set for example in the securing screw C9. There is normally some slight clearance between the inner face of the plate E and the outer end of the abutment I but the parts are so proportioned that a thrust against the face of the plate E which might tend to deform it or push it against the knife will bring it kinto contact, instead, with the abutment I, thus protecting the knife and preventing the noise which would be caused by a metal to metal contact if the inner face of the guard plate did engage any part of the knife.

Positioned on the base, and forwardly of the knife, are the tracks J J1, the outer track J1 being mounted for example on outwardly extending arms J2. Movable along said tracks is a carriage member generally indicated as J 3, which includes track engaging members J4 J5. Mounted on the carriage J3 is the work receiving member which includes a main portion J6 downwardly inclined forwardly toward the knife when the parts are in the position shown m Figure 2. Associated with it is another member J7, at right angles thereto. The portion of the member J9 adjacent the cutting plane extends outwardly as at J9 and terminates in a rolled edge J19. There is also provided an aperture J11 with the rolled edges J 12. This aperture serves as a thumb-hold, the portion of the member J9 between the rolled edges J and J 12 serving as a readily graspable handle means. The fingers may be used to feed meat or pusher plate. J13 J 14 indicate a pair of tracks or pins mounted on the carriage J2, a portion of which J15 extends to the right of the work receiving member J6 J7, as shown in Figure l. It is to this extending portion of the carriage that the pins J13 J14 are secured, they being also supported at their outer ends by the bracket J12. Positioned in general alignment with the inner track J14 and somewhat below it is a stub-pin J1?, the purpose for which will later appear.

K generally indicates a pusher plate carriage structure which is mounted to slide on the pin J14 as by the bearing sleeve K1. The bearing sleeve has connected to it an outwardly extending arm K2 to which may be secured also the lmanual handle K2. The operator may with one hand grasp both the `handle K3 and the rolled inner wall J12 of the slot Jll, when manipulating both carriage and pusher plate with one hand. Mounted at the end of the member K2 is a headed bearing screw K1 about which is r tatable the pusher plate proper K5 with its work engaging points K5. The screw K7 actually serves as the pivot, as shown in Figure l. The plate K5 is provided with an arcuate slot K5 concentric with the screw K7 which is penetrated by an abutment stud K9 headed as at K10 whereby a limited rotation of the pusher plate K5 is permitted about its Yielding means, r example the coil spring K11, F normally rotating the pusher plate to one limit of its rotation, namely counter-clockwise rotation when the parts are in the position shown in Figure 2. That is to say, the spring K11 having one end K12 associated with the member K2 and the other K13 associated with the' pusher plate K5, tends normally to rotate the pusher plate in such fashion that the abutment K K10 is engaged by the lower end 0I the slot K8. When the parts are in the position in which they are shown in Figure 2 this tendency is gravitally resisted. The pusher plate and its carriage are freely movable toward and away from the cutting plane but when the pusher plate carriage K reaches the end oi the pin J 17 it locks with the pin, through any suitable formation r aperture K14, rotation of the pusher plate assembly being prevented. This is important, since when the pusher plate is close to the cutting plane its rotation upwardly may be undesirable, since it might contact outwardly extending portions of the frame cover plate or the like. As soon as the screw J1l is cleared, however, the pusher plate asser-ably is rotatable about the pin 514. K20 is a ber bearing or riding member for the outer edge of the plate K5, preventing a metal to metal contact of the pusher plate and work support and spacing the serrated lower edge of K soinewhat above the work engaging surface oi the rneinber J5. Rotation of the pusher plate carriage K is limited by the lug K21 in which is adjustably mounted an abutment screw K22 which engages the pin J as illustrated in full line in Figure 5.

order to permit the pusher plate to be locked in inoperative position, as shown in dotted line T1 plunger thrust by the spring L1. t has a working plunger head L2 having a main bevelled surface *ht bevel L4 the opposite side there- 'lhe parts are so proportioned that when the pusher plate is swung into tho dotted llne position the latch suriace L3 rides over the pin J13 locks on slight bevel L4 is valuable having a locking or tightening thus rattle preventing effect. L5 is suitable manual or iinger operated handle whe by the plunger L may be moved into inoperaJ ve position to permit the pusher plate assembly to be swung back into the lull line position oi gui-e 2. iro'erably I so proportion the parts the pusher plate assen 1y is in dotted line position it has passed o"er its center oi gravity and a manual movement necessary not only to release the latch plunger L but to rnove the usher plate assembly back over its center of gr and into the operative or full line position of rignre Note that in the operation of the plunger L, I provide a lirnit slot L5 in the casting I may employ a gauge plate M which may be actuated in any suitable manner in response to movement of the manual control member M1. The details thereof form no part of themselves of the present invention.

I inay also employ any suitable drip pan N removably mounted on the forward edge ol the base A.

It will be realized that whereas I have described and shown a practical and operative device, nevertheless changes might be n'lade in the size, shape, nui/n er and disposition of parts without departing' from the spirit of my invention. I therefore wish rny description and drawings to taken as in a broad sense illustrative and dianiafic rather than as limiting me to my 'i' claiin: 1. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward .tace of said knife, a frame portion, extending upwardly from said base, adapted to support guard plate, a cover plate overlying the frame portion adjacent the top of the guard plate, and means for securing said guard plate on said frame portion, including sec" ring adapted to receive the lower edge of the guard plate, a yielding locking member for the upper edge of the guard plate, comprising a leaf spring, positioned beneath the cover plate, adapted, when in one position, to override an upper portion or" said plate when the plate is thrust toward the spring, and means, connected with the cover plate, for thereafter iorcing said spring downwardly into locking position, said spring being provided with an element adapted overlap an edge of said plate when the spring is in locking position.

2. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of knife, a frame portion, extending upwardly from said base, adapted to support said plate, and means for securing said guard plate on said frame portion, including secu i g members adapted to receive the lower edge oi the guard plate, a yielding locking member for the upper edge of the guard plate, coinp ing a spring adapted, when in one position, to override an upper portion of said plate when the plate is thrust toward the spring, a cover plate normally overlying said spring and means for forcing said spring downwardly into locking position in response to movement of said cover plate into normal closed position, said ineens including a downward projection on the lower tace of said cover plate adapted to clamp said spring against an opposed portion of the traine, said spring boing adapted normally to flex upwardly somewhat from said traine portion when released.

3. In a slicing machine including a base, a

knife thereon and n cans for actuating it, a guard plate the forward face of he knife, a fraine portion extending upwardly said base, adapted to support said guard plate and means for securii'ig the guard plate to said frame portion and forwardly of the knife, said means including securing members adapted to receive the lower oi the guard plate, a yielding locking member for the upper edge of the guard plate outwardly above the edge or the guard 1 piate, and including a terminal projection adapted normally to depend below the upper edge of the guard plate, a cover plate, and additional liol`ing n eens, connected with the cover plate adapted to hold said yielding locking member against movement, with said projection in guard plate locking position.

4. In a slicingr machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of the knife, a frame portion extending upwardly from said base, adapted to support said guard plate and means for securing the guard plate to said freine portion and forwardly of the knife, said means including securing members adapted to receive the lower edge oi the guard plate, a yielding locking member for the upper edge of the guard plate extending outwardly above the edge of the guard plate, and including a terminal projection adapted normally to depend below the upper edge of the guard plate, a cover plate and additional holding means connected with the cover plate adapted to hold said yielding locking member against movement, with said projection in guard plate locking position, the upper portion of said guard plate being provided with a generally horizontal inward extension adapted to underlie said yielding locking member and cover plate.

5. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of the knife, a frame portion extending upwardly from said base, adapted to support said guard. plate and means for securing the guard plate to said frame portion and forwardly of the knife, said means including securing members adapted to receive the lower edge of the guard plate, a yielding locking member for the upper edge of the guard plate extending outwardly above the edge of the guard plate, and including a terminal projection adapted normally to depend below the upper edge of the guard plate, a cover plate and additional holding means connected with the cover plate, adapted to hold said yielding locking member against movement, with said projection in guard plate locking position, the lowei` edge of the guard plate being tiltably received by said first mentioned securing members.

6. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of said knife, a frame portion, extending upwardly from said base, adapted to support said guard plate, a cover plate therefor, and means for securing said guard plate on said frame portion, including securing members adapted to receive the lower edge of the guard plate, a yielding locking member for the upper edge of the guard plate positioned beneath the cover plate, and means connected with the cover plate for positively moving and holding said yielding locking member in irm locking position, said yielding locking member including a nexible body portion adapted to extend outwardly above the upper edge of the guard plate and a locking portion adapted, when in locking position, outwardly to overlap and to extend downwardly below the upper edge of the guard plate.

'7. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of said knife, a frame portion, extending upwardly from said base, adapted to support said guard plate, a cover plate therefor, and means for securing said guard plate on said frame portion, including securing members adapted to receive the lower edge of the guard plate, a yielding locking member for the upper edge of the guard plate positioned beneath the cover plate, and means connected with the cover plate for positively moving and holding said yielding locking member in firm locking position, said yielding locking member including a flexible body portion adapted to extend outwardly above the upper edge of the guard plate, and a locking portion adapted, when in locking position, outwardly to overlap and to extend downwardly below the upper edge of the guard plate, the lower edge of the guard plate being tiltably received by the first mentioned securing members.

8. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of said knife, a frame portion, extending upwardly from said base, adapted to support said guard plate, a cover plate therefor, and means for securing said guard plate on said frame portion, including securing members adapted to receive the lower edge of the guard plate, a yielding locking member for the upper edge of the guard plate positioned beneath the cover plate, and means connected with the cover plate for positively moving and holding said yielding looking member in iirrn locking position, and a handle member' associated with an upper portion of the guard plate, adapted for the ready outward movement of the guard plate when the locking means are released, the lower edge of the guard plate being tiltably received by the iirst mentioned securing members.

9. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of the knife, a frame portion, extendinfr upwardly from said base, adapted to support said guard plate, a cover plate mounted on said frame portion adjacent the upper edge of the guard plate, and means for securing said guard plate on said frame portion forwardly of the knife, including securing members adapted to receive the lower edge of the guard plate, and a yielding locking member for the upper edge of the guard plate, said locking member being positioned beneath the cover plate, and means for moving said yielding locking member into locking position, said means being connected with the cover plate.

l0. In a slicing machine including a base, a knife thereon and means for actuating it, a guard plate for the forward face of the knife, a frame portion, extending upwardly from said base, adapted. to support said guard plate, a cover plate mounted on said frame portion adjacent the upper edge of the guard plate, and means for securing said guard plate on said frame portion forwardly of the knife, including securing members adapted to receive the lower edge of the guard plate, and a yielding locking member for the upper edge of the guard plate, said locking member being positioned beneath the cover plate, and means for moving said yielding locking member into locking position, said means being connected with the cover plate, said yielding means including a exible spring body, said guard plate includinfr a portion at an angle to the rest of the guard plate, extending inwardly beneath said cover plate.

WILLIAM J. CAMPBELL. 

